You are given a string s. Your task is to divide the string into the maximum number of parts such that each letter appears in at most one part. The resulting parts, when concatenated in order, should form the original string.
You are given a string s consisting of lowercase English letters. The task is to rearrange the characters of the string such that no two adjacent characters are the same. Return any valid rearrangement of the string, or return an empty string if it is not possible to rearrange the characters in such a way.
In a forest, there are an unknown number of rabbits. We ask n rabbits, ‘How many rabbits of the same color as you are there?’ and collect their answers in an integer array answers, where answers[i] is the answer of the i-th rabbit. The task is to determine the minimum number of rabbits that could be in the forest.
You are given a string order that specifies a custom order of characters, and a string s that contains the characters you need to permute. The task is to rearrange the characters of s so that they follow the order specified in the string order. If a character appears in order, it must appear in s in the same relative order. Any characters from s that don’t appear in order can be arranged in any position.
You are given a string s and an array of strings words. Your task is to determine how many words from the array are subsequences of the string s. A subsequence of a string is derived by deleting some or no characters from the original string without altering the order of the remaining characters.
You are given a list of count-paired domains, where each entry consists of a number followed by a domain name. The number represents the number of visits to that domain. A domain may also have subdomains, and visiting a subdomain also counts as visiting its parent domains. Your task is to return the count of visits for each domain and its subdomains.
